可逆的

Results showed that TDI induced toxic action on spermatogenic cell,while the chondriosome was its target within the length and concentrations.

结果表明：在本实验染毒时间和染毒剂量范围内，TD I对雄性的生殖毒性主要表现为对各级生精细胞均有一定的毒性作用，作用的靶点是细胞内的线粒体；TD I通过影响各种酶的活性，干扰了睾丸组织的有氧代谢和无氧供能，抑制了细胞对能量的利用，损伤了各级生精细胞，导致生精上皮不可逆的损害，从而造成了其对雄性生殖系统的损伤；TD I对雄性生殖细胞的核酸代谢以及DNA合成有一定影响。

A combination of DLS and SLS was used to characterize the temperature dependence of the diameter and structure of the nanoparticles and the corresponding hollow spheres, and it was found that the temperature dependence is completely reversible.

用DLS跟踪了纳米粒子的核酶解过程中散射光强和粒径的变化，并用FTIR，SEM和TEM表征了酶解前后纳米粒子的结构和形貌的变化；结合采用DLS和SLS技术表征了纳米粒子和空心球的粒径及结构对温度的依赖性，发现PNIPAM空心球的温敏性变化是完全可逆的。

Inchapt 3,we study construction of the invariant polynomial ring oftrace map associated with substitution.We solve this problem whensubstitution is invertible,give a basic theorem.

第三章研究结合代换的迹映射的不变多项式所形成的环，解决了代换为可逆的情形的环的结构问题，并给出了有关的基本定理。

Somewhere i have never travelled, gladly beyond / any experience, your eyes have their silence:/ in your most frail gesture are things which enclose me,/ or which i cannot touch because they are too near / your slightest look easily will unclose me / though i have closed myself as fingers,/ you open always petal by petal myself as Spring opens / touching skillfully, mysteriously / her first rose / or if your wish be to close me, i and / my life will shut very beautifully, suddenly,/ as when the heart of this flower imagines / the snow carefully everywhere descending

后来才发现原来一直喜欢的那个曲子是出自男孩自杀的情节処虽然到最后女孩也没能唤醒男孩但他们一起去了色盲岛雨过天晴后看见了美丽的彩虹生命里总是会有很多一厢情愿男孩一厢情愿的爱与未来女孩一厢情愿的陪伴就像诗里说的那样人总是在不经意间便轻易地影响到他人而且这种影响是永恒的不可逆的

By describing Pythagorean theorem, the first time-space view explain the plane-line thought which impacts human's thinking manner; the second time-space view is absolute time-space theory of Newton and three-dimensions space-time view intersected by space-time; the third space-time view is curve space-time view which is generated from Einsteinian relative theory. The fourth space-time view is the directional, irreversible entropy time-space thought; the fifth time-space view is dense time-space view of cracked fractal generated from chaos-fractal theory.

第一时空观是通过对勾股定理的描述来说明影响人们思维方式的平直时空观；第二时空观是牛顿的绝对时空理论，是时空分割的立体三维时空观；第三时空观是爱因斯坦的相对论理论所带来的弯曲时空观；第四时空观是具有方向不可逆的熵时空观；第五时空观是混沌与分形理论所带来的破碎分形的稠时空观。

The results indicate that the different thermal expansions and elastoplastic properties and distributed randomness of various mineral particles composed of oil shale will lead to the nonuniformity of thermal field , deformation field and stress field in heating process , which makes the particles of oil shale deform incompatibly : and the release of product pyrolysis results in irreversible damages of oil shale material and structure . These are the main reasons for the thermal fracture of oil shale .

研究结果表明：组成油页岩各种矿物颗粒热膨胀和弹塑性性质的不同及其分布的随机性，导致油页岩加热过程中温度场，变形场和应力场的非均匀性，使得油页岩颗粒间变形不协调和油页岩热解产物释放引起油页岩材料与结构性能发生不可逆的劣化损伤，这是油页岩发生热破裂的主要原因；热传导方式加热油页岩，温度的传递比较缓慢，加热井和生产井的间距不宜过大，对油页岩储层性质存在差异时，注热井应选择较高热导率的区段；油页岩的层理对油页岩地下原位开发形成渗透带至关重要，油页岩达到热解温度会产生附加的膨胀力，首先在层理处开裂，应充分利用油页岩层理赋存条件改造其渗透性。

The results indicate that the different thermal expansions and elastoplastic properties and distributed randomness of various mineral particles composed of oil shale will lead to the nonuniformity of thermal field, deformation field and stress field in heating process, which makes the particles of oil shale deform incompatibly: and the release of product pyrolysis results in irreversible damages of oil shale material and structure. These are the main reasons for the thermal fracture of oil shale. When oil shale is heated through thermal conduction, temperature transfers slowly, so the spacing between heating well and production well should not be kept too long. When difference exists in oil shale reservoir's properties, heating well should be chosen in the high conductivity region. Oil shale's stratification is vital for developing permeation zone in in-situ retorting. Oil shale will generate additional expansion force as it reaches its pyrolysis temperature, and stratification will be cracked first, so the oil shale stratification should be utilized to enhance its permeability.

研究结果表明：组成油页岩各种矿物颗粒热膨胀和弹塑性性质的不同及其分布的随机性，导致油页岩加热过程中温度场、变形场和应力场的非均匀性，使得油页岩颗粒间变形不协调和油页岩热解产物释放引起油页岩材料与结构性能发生不可逆的劣化损伤，这是油页岩发生热破裂的主要原因；热传导方式加热油页岩，温度的传递比较缓慢，加热井和生产井的间距不宜过大，对油页岩储层性质存在差异时，注热井应选择较高热导率的区段；油页岩的层理对油页岩地下原位开发形成渗透带至关重要，油页岩达到热解温度会产生附加的膨胀力，首先在层理处开裂，应充分利用油页岩层理赋存条件改造其渗透性。

It is an unarguable truth that the global warming is accelerating, which has attracted the attention of the world widely. Among the three main factors affecting the change of earth environment, the effects of heaven and earth are objective, determinative and irreversible, while the biological action especially that of the humans are mostly subjective, important and man-made.

在影响地球环境变迁的天－地－人三大因素中，天和地的作用是客观的、决定性的、不可逆的；生物作用特别是人的作用大多是主观的、非常重要的、负有人为责任的。

Since H〓S and SO〓 adsorbed on TiO〓 could react with each other and TiO〓 is the medium of their electron transfer, thus SO〓 could not be adsorbed quite strong on the active site of TiO〓, which makes it more resistant to sulfating and increase the stability of catalyst. Finally, the model and mechanism of the reduction of SO〓 by NH〓 to elemental sulfur is advanced as follows: on the sulfide catalyst, ammonia is decomposed to N〓 and H〓, and H〓 reacts with SO〓 to form the intermedium of H〓S; then H〓S and SO〓 react as Claus reaction on TiO〓 catalyst.

反应系统中过量水蒸气的存在使催化剂表面某些活性位被水蒸气抑制使活性和选择性有较大幅度降低，但这种影响是可逆的，不会造成催化剂永久性中毒；另外当单质硫和水蒸气同时存在时，在〓催化剂上能够生成硫化氢和二氧化硫，而且由于硫化氢和二氧化硫化学吸附能力不同而导致它们的脱附顺序不同，硫化氢的生成温度总是低于二氧化硫的生成温度，说明过量水蒸气的存在会导致氧化物催化剂上逆克劳斯反应的发生；而在硫化物催化剂上几乎没有硫化氢和二氧化硫生成，说明硫化物催化剂能够抑制逆克劳斯反应的发生。

Given the specialness of the Peltier Effect acting on the thermal electrical cooler, I contrive the detailed structure of the power drive module and illuminate the principles of setting corresponding parameters, enabling reliable, precise and bi-direction\'s direct current to supply the thermal electrical cooler.

针对TEC半导体制冷片Peltier效应的特殊性，设计相应的功率驱动方案，以保证半导体片有可靠精准且方向可逆的直流电流供给，给出了功率驱动系统具体结构的设计方法和相应参数的选择计算原则。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。